$a=@{}
$a.name="Joe"
$a.gender="male"
$a.age=42
$a.city="New York"

$a["name"]
$a.name

$a
$a.count
$a.keys
$a.values

$a.street="5th Avenue"
"Before removel of street:"
$a
$a.Remove("street")
"After removel of street:"
$a

foreach ($key in $a.keys) {
    "$key : $($a[$key])"
}

$a.street=@{}
$a.street.country="USA"
$a.street.state="NY"
$a.street.zip=10001
$a
$a.street
